According to an affidavit for arrest issued by the Bexar County Sheriff's Office, the rape occurred around 2 p.m. at Tarrasa and Lago Frio. The victim reported that a man came up to her as she walked along Walzem Road, close to a Dollar General store.

After disclosing that he was 16 years old and nicknamed Rob, the victim told the suspect her age at his request. Then, he tugged her hair and yanked her into a field behind a house, according to the affidavit.

Once in the field, he forced her to the ground and raped her. As a last gesture, he used some pen and paper the victim was forced to retrieve to give her his phone number, the affidavit states.

The phone number ended up being the key to Dotson's arrest, according to the affidavit. During a previous stint in jail, he telephoned the number. He also was identified as the perpetrator by the victim.